witness: lock_object uninitialized: 0xffff8000012fd028 Starting stack trace... witness_checkorder(ffff8000012fd028,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000012fd028,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_enter_write(ffff8000012fd018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000012fd000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000363adfd8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000371b82b0,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000371b82b0,ffff8000371d9800,ffff8000371d9750) at sys_exit+0x1a syscall(ffff8000371d9800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d9800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x773d46833c70, count: 249 End of stack trace. Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000012fd028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000012fd018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000012fd000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000363adfd8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000371b82b0,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000371b82b0,ffff8000371d9800,ffff8000371d9750) at sys_exit+0x1a syscall(ffff8000371d9800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d9800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x773d46833c70, count: -9 ddb{1}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff8000371d94d0 rbx 0 rdx 0 rcx 0xffff8000371b82b0 rax 0xffff800029b7bff0 r8 0xffff8000371d9470 r9 0x8080808080808080 r10 0xffff8000371d93c0 r11 0x985a499eb1b74574 r12 0 r13 0x1 r14 0xffff8000012fd028 r15 0x3 rip 0xffffffff81610e15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371d94c0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=110271 pid=63808 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=79, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000371b82b0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000371b8538,0xffff8000371b9988 process=0xffff8000363adfd8 user=0xffff8000371d4000, vmspace=0xfffffd806bfbf3a0 estcpu=29, cpticks=9, pctcpu=0.5, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97190 444566 95294 0 7 0 syz-executor 97190 209725 95294 0 2 0x4000000 syz-executor 38335 343616 42397 0 2 0 syz-executor 38335 67857 42397 0 2 0x4000000 syz-executor 38335 378528 42397 0 3 0x4000080 fsleep syz-executor 6222 54029 91291 0 2 0 syz-executor 6222 490926 91291 0 3 0x4000080 kqread syz-executor 72851 334494 6451 0 3 0x1000080 nanoslp syz-executor 72851 102287 6451 0 3 0x5000080 lockf syz-executor 72851 403802 6451 0 3 0x5000080 sbwait syz-executor 72851 498934 6451 0 3 0x5000080 fsleep syz-executor 87707 400180 0 0 3 0x14200 bored sosplice 57026 13299 92164 0 2 0x2 syz-executor 45374 431106 92164 0 3 0x82 nanoslp syz-executor 42397 398906 92164 0 3 0x82 nanoslp syz-executor 6451 452254 92164 0 3 0x82 nanoslp syz-executor 87342 511823 92164 0 2 0x2 syz-executor 5534 236040 92164 0 2 0x2 syz-executor 95294 136491 92164 0 3 0x82 nanoslp syz-executor 91291 374693 92164 0 3 0x82 nanoslp syz-executor 92164 9380 22299 0 2 0x2 syz-executor 22299 346652 8733 0 3 0x10008a sigsusp ksh 8733 88268 38177 0 3 0x98 kqread sshd-session 38177 331394 24319 0 3 0x92 kqread sshd-session 46874 228801 1 0 3 0x100083 ttyin getty 24319 348702 1 0 3 0x88 kqread sshd 23209 475444 67531 74 3 0x1100092 bpf pflogd 67531 77187 1 0 3 0x80 sbwait pflogd 96100 104272 21260 73 3 0x1100090 kqread syslogd 21260 259803 1 0 3 0x100082 sbwait syslogd 23791 291462 1 0 3 0x100080 kqread resolvd 83035 59872 992 77 3 0x100092 kqread dhcpleased 55991 163061 992 77 3 0x100092 kqread dhcpleased 992 399659 1 0 3 0x80 kqread dhcpleased 21622 26797 0 0 3 0x14200 bored smr 14689 203408 0 0 2 0x14200 zerothread 83965 164341 0 0 3 0x14200 aiodoned aiodoned 38873 500917 0 0 3 0x14200 syncer update 66645 245619 0 0 3 0x14200 cleaner cleaner 26421 319984 0 0 3 0x14200 reaper reaper 95417 156727 0 0 3 0x14200 pgdaemon pagedaemon 53898 241969 0 0 3 0x14200 bored viomb 11581 214777 0 0 3 0x40014200 acpi0 acpi0 74153 85769 0 0 3 0x40014200 idle1 45535 244240 0 0 3 0x14200 bored softnet3 28382 301433 0 0 3 0x14200 bored softnet2 90131 254773 0 0 3 0x14200 bored softnet1 79636 200968 0 0 3 0x14200 bored softnet0 11140 442347 0 0 3 0x14200 bored systqmp 7703 155766 0 0 3 0x14200 bored systq 32975 318624 0 0 3 0x14200 tmoslp softclockmp 22329 167199 0 0 3 0x40014200 tmoslp softclock 86442 41590 0 0 3 0x40014200 idle0 1 39543 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 97190 (syz-executor) thread 0xffff8000ffffc7a8 (444566) exclusive rwlock uobjlk r = 0 (0xfffffd8078cdb748) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 uvm_fault_lower_lookup+0x54 sys/uvm/uvm_fault.c:1128 #3 uvm_fault_lower+0x6f sys/uvm/uvm_fault.c:1236 #4 uvm_fault+0x2f0 sys/uvm/uvm_fault.c:637 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bfbfd58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1819 #2 uvm_fault_check+0x49 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf5 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 97190 (syz-executor) thread 0xffff8000ffffc010 (209725) exclusive rwlock futex r = 0 (0xffffffff834c73e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sys_futex+0x69 sys/kern/sys_futex.c:98 #2 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #2 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #3 Xsyscall+0x128 Process 38335 (syz-executor) thread 0xffff8000ffffc298 (67857) exclusive rwlock fdlock r = 0 (0xfffffd806ae34df0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 sys_socket+0x1f2 #2 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #2 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #3 Xsyscall+0x128 Process 57026 (syz-executor) thread 0xffff800029fd9be0 (13299) exclusive rrwlock inode r = 0 (0xfffffd806b47a1b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_getdents+0x264 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 87342 (syz-executor) thread 0xffff80002a03ef48 (511823) exclusive rwlock vmmaplk r = 0 (0xfffffd806bfbf658) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3820 #3 process_new+0x553 sys/kern/kern_fork.c:279 #4 fork1+0x3ea sys/kern/kern_fork.c:405 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd8078ce19d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3811 #3 process_new+0x553 sys/kern/kern_fork.c:279 #4 fork1+0x3ea sys/kern/kern_fork.c:405 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 5534 (syz-executor) thread 0xffff80002a03ecc0 (236040) exclusive rwlock vmmaplk r = 0 (0xfffffd806bfbf9d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3820 #3 process_new+0x553 sys/kern/kern_fork.c:279 #4 fork1+0x3ea sys/kern/kern_fork.c:405 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd806ec7a2c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5255 #2 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3811 #3 process_new+0x553 sys/kern/kern_fork.c:279 #4 fork1+0x3ea sys/kern/kern_fork.c:405 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 92164 (syz-executor) thread 0xffff80002a03ea38 (9380) exclusive rwlock sbufsnd r = 0 (0xffff800001290980) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 sosend+0x2ff sys/kern/uipc_socket.c:681 #4 dofilewritev+0x23c sys/kern/sys_generic.c:380 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 11120K 11307K 166960K 11463 0 pcb 17 16K 21K 166960K 144 0 rtable 212 6K 6K 166960K 354 0 pf 32 17K 19K 166960K 54 0 ifaddr 39 6K 7K 166960K 50 0 ifgroup 51 2K 2K 166960K 67 0 sysctl 1 1K 1K 166960K 1 0 counters 62 36K 36K 166960K 70 0 ioctlops 0 0K 4K 166960K 1590 0 iov 0 0K 8K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 88K 166960K 1533 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 250 0 sigio 0 0K 0K 166960K 2 0 proc 77 115K 140K 166960K 552 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4 0 in_multi 88 6K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 368 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 72K 77K 166960K 3943 0 UVM aobj 8 2K 2K 166960K 10 0 pinsyscall 42 84K 106K 166960K 1334 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 11 0K 2K 166960K 32 0 temp 42 6819K 6884K 166960K 6654 0 kqueue 14 22K 26K 166960K 47 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 37 0 34 1 0 1 1 0 8 0 rtentry 112 113 0 14 4 0 4 4 0 8 0 unpcb 144 103 0 83 1 0 1 1 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpqe 32 8 0 8 2 1 1 1 0 8 1 tcpcb 808 74 0 68 6 1 5 5 0 8 4 arp 120 18 0 2 1 0 1 1 0 8 0 inpcb 336 284 0 273 12 3 9 12 0 8 7 nd6 136 25 0 4 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 24 0 0 1 0 1 1 0 8 0 pfstkey 128 24 0 0 1 0 1 1 0 8 0 pfstate 376 24 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 482 0 73 29 0 29 29 0 8 0 art_table 32 483 0 73 4 0 4 4 0 8 0 art_node 16 112 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 2 1 1 1 0 8 1 semapl 112 8 0 2 1 0 1 1 0 8 0 shmpl 112 7 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1758 0 250 95 0 95 95 0 8 0 ffsino 272 1758 0 250 102 0 102 102 0 8 0 nchpl 144 2094 0 411 63 0 63 63 0 8 0 uvmvnodes 80 1984 0 0 41 0 41 41 0 8 0 vnodes 216 1984 0 0 111 0 111 111 0 8 0 namei 1024 6903 0 6903 3 2 1 2 0 8 1 percpumem 16 49 0 4 1 0 1 1 0 8 0 kstatmem 264 30 0 8 2 0 2 2 0 8 0 scxspl 216 6572 0 6571 9 1 8 8 1 8 7 plimitpl 152 40 0 23 1 0 1 1 0 8 0 sigapl 424 553 0 503 7 1 6 7 0 8 0 futexpl 64 1835 0 1832 1 0 1 1 0 8 0 knotepl 120 303 0 0 10 0 10 10 0 8 0 kqueuepl 216 49 0 39 1 0 1 1 0 8 0 pipepl 320 116 0 89 3 0 3 3 0 8 0 fdescpl 496 534 0 504 6 1 5 6 0 8 1 filepl 152 2576 0 2323 19 1 18 18 0 8 7 lockfpl 104 52 0 48 1 0 1 1 0 8 0 lockfspl 48 20 0 17 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 14 1 0 1 1 0 8 0 ucredpl 104 156 0 142 1 0 1 1 0 8 0 zombiepl 144 536 0 535 1 0 1 1 0 8 0 processpl 1160 553 0 503 5 1 4 5 0 8 0 procpl 648 770 0 713 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 4 0 4 2 1 1 1 0 8 1 sockpl 664 430 0 396 14 3 11 14 0 8 7 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 136 0 0 17 0 17 17 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 159 0 0 10 0 10 10 0 8 0 bufpl 280 2392 0 98 164 0 164 164 0 8 0 anonpl 24 142421 0 139138 29 2 27 29 0 185 2 amapchunkpl 152 12349 0 11889 23 0 23 23 0 158 2 amappl16 200 3648 0 3631 6 3 3 6 0 8 1 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1179 0 1150 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 8 0 7 1 0 1 1 0 8 0 amappl9 144 143 0 143 1 1 0 1 0 8 0 amappl8 136 41 0 39 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 257 0 255 1 0 1 1 0 8 0 amappl5 112 136 0 125 1 0 1 1 0 8 0 amappl4 104 304 0 285 1 0 1 1 0 8 0 amappl3 96 2351 0 2261 3 0 3 3 0 8 0 amappl2 88 802 0 721 3 0 3 3 0 8 0 amappl1 80 8135 0 7570 16 2 14 14 0 8 0 amappl 88 3559 0 3397 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 9 0 2 1 0 1 1 0 8 0 uaddrrnd 24 535 0 504 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 535 0 504 1 0 1 1 0 8 0 vmmpekpl 168 5919 0 5879 4 1 3 3 0 8 0 vmmpepl 168 41452 0 39684 91 2 89 89 0 357 1 vmsppl 448 534 0 504 6 2 4 5 0 8 0 rwobjpl 56 17689 0 14788 44 1 43 43 0 8 0 pdppl 4096 1077 0 1008 105 34 71 87 0 8 2 pvpl 32 12026 0 0 97 0 97 97 0 265 0 pmappl 248 534 0 504 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 402 0 45 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8349fff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800031385be0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800031385d50,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __mp_lock(ffffffff8359d330) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359d330) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800031385eb0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f Xspllower() at Xspllower+0x1d pmap_enter(fffffd806ae275e0,110c288000,6c065000,1,20) at pmap_enter+0xc32 pmap_unmap_ptes sys/arch/amd64/amd64/pmap.c:456 [inline] pmap_enter(fffffd806ae275e0,110c288000,6c065000,1,20) at pmap_enter+0xc32 sys/arch/amd64/amd64/pmap.c:2954 uvm_fault_lower_lookup(ffff800031386338,ffff800031386370,ffff8000313862b0) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1194 uvm_fault_lower(ffff800031386338,ffff800031386370,ffff8000313862b0,ffff8000ffffc7a8) at uvm_fault_lower+0x6f sys/uvm/uvm_fault.c:1236 uvm_fault(fffffd806bfbfc60,110c286000,0,1) at uvm_fault+0x2f0 sys/uvm/uvm_fault.c:637 upageflttrap(ffff8000313864c0,110c28662d) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff8000313864c0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x72fab083e360, count: -21 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000012fd028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000012fd018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000012fd000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000363adfd8) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000371b82b0,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000371b82b0,ffff8000371d9800,ffff8000371d9750) at sys_exit+0x1a syscall(ffff8000371d9800) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000371d9800) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x773d46833c70, count: -9